<StackLayoutWidget>:

    orientation: "lr-tb"

    padding: [20, 10]
    spacing: [20, 10]

    canvas:
        Color:
            rgba:[1, 1, 1, 1]
        Rectangle:
            size: self.size
            pos: self.pos

    Button:
        text: "Bt0"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt1"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt2"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt3"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt4"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt5"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt6"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt7"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt8"
        size_hint: [0.2, 0.1]

    Button:
        text: "Bt9"
        size_hint: [0.2, 0.1]
